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oracle中查询被锁的表并释放session

2009-04-30 10:17 239 查看
查询sql: SELECT A.OWNER,
A.OBJECT_NAME,
B.XIDUSN,
B.XIDSLOT,
B.XIDSQN,
B.SESSION_ID,
B.ORACLE_USERNAME,
B.OS_USER_NAME,
B.PROCESS,
B.LOCKED_MODE,
C.MACHINE,
C.STATUS,
C.SERVER,
C.SID,
C.SERIAL#,
C.PROGRAM
FROM ALL_OBJECTS A,
V$LOCKED_OBJECT B,
SYS.GV_$SESSION C
WHERE ( A.OBJECT_ID = B.OBJECT_ID )
AND (B.PROCESS = C.PROCESS )
ORDER BY 1,2 释放session Sql: alter system kill session 'sid, serial#'
alter system kill session '379, 21132'
alter system kill session '374, 6938'

查询锁的状况的对象有?
  V$LOCK, V$LOCKED_OBJECT, V$SESSION, V$SQLAREA, V$PROCESS ;
  查询锁的表的方法:
  SELECT S.SID SESSION_ID, S.USERNAME, DECODE(LMODE, 0, 'None', 1, 'Null', 2, 'Row-S (SS)', 3, 'Row-X (SX)', 4, 'Share', 5, 'S/Row-X (SSX)', 6, 'Exclusive', TO_CHAR(LMODE)) MODE_HELD, DECODE(REQUEST, 0, 'None', 1, 'Null', 2, 'Row-S (SS)', 3, 'Row-X (SX)', 4, 'Share', 5, 'S/Row-X (SSX)', 6, 'Exclusive', TO_CHAR(REQUEST)) MODE_REQUESTED, O.OWNER||'.'||O.OBJECT_NAME||' ('||O.OBJECT_TYPE||')', S.TYPE LOCK_TYPE, L.ID1 LOCK_ID1, L.ID2 LOCK_ID2 FROM V$LOCK L, SYS.DBA_OBJECTS O, V$SESSION S WHERE L.SID = S.SID AND L.ID1 = O.OBJECT_ID ;

oracle 查看死锁的脚本 SELECT substr(v$lock.sid,1,4) "SID",
substr(username,1,12) "UserName",
substr(object_name,1,25) "ObjectName",
v$lock.type "LockType",
decode(rtrim(substr(lmode,1,4)),
'2','Row-S (SS)','3','Row-X (SX)',
'4','Share', '5','S/Row-X (SSX)',
'6','Exclusive', 'Other' ) "LockMode",
substr(v$session.program,1,25) "ProgramName"
FROM V$LOCK,SYS.DBA_OBJECTS,V$SESSION
WHERE (OBJECT_ID = v$lock.id1
AND v$lock.sid = v$session.sid
AND username IS NOT NULL
AND username NOT IN ('SYS','SYSTEM')
AND SERIAL# != 1);

查看锁表进程SQL语句1:
select sess.sid,
sess.serial#,
lo.oracle_username,
lo.os_user_name,
ao.object_name,
lo.locked_mode
from v$locked_object lo,
dba_objects ao,
v$session sess
where ao.object_id = lo.object_id and lo.session_id = sess.sid; 查看锁表进程SQL语句2:
select * from v$session t1, v$locked_object t2 where t1.sid = t2.SESSION_ID; 杀掉锁表进程:
如有記錄則表示有lock,記錄下SID和serial# ,將記錄的ID替換下面的738,1429,即可解除LOCK
alter system kill session '738,1429';
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